joe biden. >> don't boo, he is the best thing we got going, guys. in a brief moment of clarity, he told us what we already knew. >> they say they expect him to call on the gop. the president has repeatedly said that he has not said how he will do it. but in an interview with a denver tv station, romney began to do just that. >> you could say everybody will get up to a $17,000 deduction, and you canchartible deduction, or mortgage deduction. >> romney officials will not say if they are one-liners saved up for tonight, but they say it will not be difficult to go after the president on the economy. translation, wolf, i think that means we'll have to wait and see what happens tonight. meanwhile, the romney campaign, or a romney family member has tried to take romney supporters out there and the rest of americans looking forward to tonight's debate inside the romney campaign debate preparations between mitt romney and rob portman, the ohio senator playing the roll of president obama. he tweeted out a picture earlier today of the two men in debate prepara